Year Percent of GDP (Units) 2000 58.930 2001 51.729 2002 62.116 2003 66.444 2004 87.015 2005 71.088 2006 40.896 2007 25.885 2008 19.517 2009 21.491 2010 16.423 2011 13.280 2012 10.032 2013 9.490 2014 13.181 2015 20.128 2016 27.722 2017 34.521 2018 39.876 2019 46.896 2020 65.230 2021 69.172 2022 70.554 2023 74.284 2024 77.848 2025 80.610 2026 83.150 2027 85.412 2028 87.586 2029 89.572